Sweet Summer 5: Sophie's super easy frangourou Christmas Log cake

Super easy, super delicious frangourou Christmas Log cake(requires no baking, can be made Christmas Eve).
This was my mother's invention, we had it every Christmas when we were kids, and I still make it every Christmas.
Ingredients:
1 packet sponge finger biscuits
200 g unsalted butter, melted
1 or 2 eggs(depending on how much mixture you have)
half to 3/4 cup hot strong sweet coffee(a good instant coffee works fine)
Cooking chocolate, melted with a little cream.
Crush all the biscuits, add the hot sweet coffee, the melted butter, and mix well. Add the slightly beaten egg(or two). You need to obtain a good stiff mix that you can easily shape into a log. That's what you do then--shape it into a log, and then put it in fridge till it is set. Meanwhile melt the chocolate over a low heat with a little cream, stir till all melted and glossy. Spread over the cake, on the top and sides. Put in fridge to set overnight. You can also decorate the top with angelica leaves, almonds, rose petals, sugar holly, whatever you feel like!
To everyone I wish a wonderful Christmas, Hanukkah, and every other seasonal festivity, and a happy New Year! A bientôt!